#include <stdio.h>#include <math.h>#define SQ(x)   ((x)*(x))#define tol 1.0e-6#define pi  3.1415926void Input2();void Sys2();void Quad2();void Diag2();void Inter2();void Out2();void Solve();int N,L;	/*[	Globla Variables	]*/char inname[20],outname[20];